Bump jvm from 1.9.0 to 1.9.21

Bumps [jvm](https://github.com/JetBrains/kotlin) from 1.9.0 to 1.9.21.
- [Release notes](https://github.com/JetBrains/kotlin/releases)
- [Changelog](https://github.com/JetBrains/kotlin/blob/master/ChangeLog.md)
- [Commits](JetBrains/kotlin@v1.9.0...v1.9.21)

---
updated-dependencies:
- dependency-name: jvm
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

build.gradle.kts

@@ -3,7 +3,7 @@ import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
 plugins {
 	id("org.springframework.boot") version "3.1.4"
 	id("io.spring.dependency-management") version "1.1.3"
-	kotlin("jvm") version "1.9.0"
+	kotlin("jvm") version "1.9.21"
 	kotlin("plugin.spring") version "1.9.0"
 	`maven-publish`
 }